multi.txt

#include<stdio.h>
#include<conio.h>
#include<math.h>
#include<string.h>

#define pf printf
#define sc scanf
#define ll long long
#define yes printf("YES\n")
#define no  printf("NO\n");
#define pi acos(-1)


const int inf = 1e9 + 10;
const ll INF = 1e18 + 10;

int main()
{
   int t=1;
  // sc("%d",&t);
   while(t--)
   {
       int n;
       sc("%d",&n);
       int arr[n][n],arr1[n][n],mul[n][n];
       int sum=0,i,j;
       for(int i=0;i<n;i++)
       {
           for(int j=0;j<n;j++)
           {
              sc("%d",&arr[i][j]);
           }
       }
       for(int i=0;i<n;i++)
       {
           {
              sc("%d",&arr1[i][j]); for(int j=0;j<n;j++)

           }
       }

        for (int m = 0; m < n; m++) {
        for (i = 0; i < n; i++) {
        for (j = 0; j < n; j++) {
          sum+= arr[m][j]*arr1[j][i];
        }

        mul[m][i] = sum;
        sum = 0;
      }
    }



        for(int i=0;i<n;i++)
       {
           for(int j=0;j<n;j++)
           {
              pf("%d ",mul[i][j]);
           }
           pf("\n");

       }

   }

}